1st International ICST Conference on Communications and Networking in China

Research Article

A New Scheme for Constructing High Code Efficiency LS ZCW Multiple Access Codes

  • @INPROCEEDINGS{10.1109/CHINACOM.2006.344710,
        author={Zheng  Yu and  Xing  Yang and Daoben  Li},
        title={A New Scheme for Constructing High Code Efficiency LS ZCW Multiple Access Codes},
        proceedings={1st International ICST Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2007},
        month={4},
        keywords={},
        doi={10.1109/CHINACOM.2006.344710}
    }
    
  • Zheng Yu
    Xing Yang
    Daoben Li
    Year: 2007
    A New Scheme for Constructing High Code Efficiency LS ZCW Multiple Access Codes
    CHINACOM
    IEEE
    DOI: 10.1109/CHINACOM.2006.344710
Zheng Yu1,2, Xing Yang1,2, Daoben Li1,2
  • 1: School Of Information Engineering, Beijing University Of Posts
  • 2: And Telecommunications, Beijing 100876, China

Abstract

New zero correlation window (ZCW) LS (loosely synchronous) codes derived from basic LS codes are constructed. A general scheme for generating these codes is also discussed. It is showed mathematically that these new codes have a uniform ZCW for both aperiodic auto-correlation function (ACF) and cross-correlation function (CCF) within one group. Moreover, the minimum ZCW among different groups is the same as that of basic LS codes. The number of these new codes is more than the basic LS codes, and code efficiency can be greatly enhanced. Finally, the computer simulations verify the validity of new LS codes.